diff --git a/.github/workflows/latest_deps.yml b/.github/workflows/latest_deps.yml
index c6f481cda..a7097d5ea 100644
--- a/.github/workflows/latest_deps.yml
+++ b/.github/workflows/latest_deps.yml
@@ -27,7 +27,7 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@55c7845fad90d0ae8b2e83715cb900e5e861e8cb
+        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
         with:
           toolchain: stable
       - uses: Swatinem/rust-cache@v2
@@ -61,7 +61,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@55c7845fad90d0ae8b2e83715cb900e5e861e8cb
+        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
         with:
           toolchain: stable
       - uses: Swatinem/rust-cache@v2
@@ -134,7 +134,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@55c7845fad90d0ae8b2e83715cb900e5e861e8cb
+        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
         with:
           toolchain: stable
       - uses: Swatinem/rust-cache@v2
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index ec5ab79f9..7ff0b5ba8 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -102,7 +102,7 @@ jobs:
         # There don't seem to be versioned releases of this action per se: for each rust
         # version there is a branch which gets constantly rebased on top of master.
         # We pin to a specific commit for paranoia's sake.
-        uses: dtolnay/rust-toolchain@55c7845fad90d0ae8b2e83715cb900e5e861e8cb
+        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
         with:
             toolchain: 1.58.1
             components: clippy
@@ -122,7 +122,7 @@ jobs:
         # There don't seem to be versioned releases of this action per se: for each rust
         # version there is a branch which gets constantly rebased on top of master.
         # We pin to a specific commit for paranoia's sake.
-        uses: dtolnay/rust-toolchain@55c7845fad90d0ae8b2e83715cb900e5e861e8cb
+        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
         with:
           toolchain: 1.58.1
           components: rustfmt
@@ -184,7 +184,7 @@ jobs:
         # There don't seem to be versioned releases of this action per se: for each rust
         # version there is a branch which gets constantly rebased on top of master.
         # We pin to a specific commit for paranoia's sake.
-        uses: dtolnay/rust-toolchain@55c7845fad90d0ae8b2e83715cb900e5e861e8cb
+        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
         with:
             toolchain: 1.58.1
       - uses: Swatinem/rust-cache@v2
@@ -228,7 +228,7 @@ jobs:
         # There don't seem to be versioned releases of this action per se: for each rust
         # version there is a branch which gets constantly rebased on top of master.
         # We pin to a specific commit for paranoia's sake.
-        uses: dtolnay/rust-toolchain@55c7845fad90d0ae8b2e83715cb900e5e861e8cb
+        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
         with:
             toolchain: 1.58.1
       - uses: Swatinem/rust-cache@v2
@@ -346,7 +346,7 @@ jobs:
         # There don't seem to be versioned releases of this action per se: for each rust
         # version there is a branch which gets constantly rebased on top of master.
         # We pin to a specific commit for paranoia's sake.
-        uses: dtolnay/rust-toolchain@55c7845fad90d0ae8b2e83715cb900e5e861e8cb
+        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
         with:
             toolchain: 1.58.1
       - uses: Swatinem/rust-cache@v2
@@ -489,7 +489,7 @@ jobs:
         # There don't seem to be versioned releases of this action per se: for each rust
         # version there is a branch which gets constantly rebased on top of master.
         # We pin to a specific commit for paranoia's sake.
-        uses: dtolnay/rust-toolchain@55c7845fad90d0ae8b2e83715cb900e5e861e8cb
+        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
         with:
             toolchain: 1.58.1
       - uses: Swatinem/rust-cache@v2
@@ -517,7 +517,7 @@ jobs:
         # There don't seem to be versioned releases of this action per se: for each rust
         # version there is a branch which gets constantly rebased on top of master.
         # We pin to a specific commit for paranoia's sake.
-        uses: dtolnay/rust-toolchain@55c7845fad90d0ae8b2e83715cb900e5e861e8cb
+        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
         with:
             toolchain: 1.58.1
       - uses: Swatinem/rust-cache@v2
diff --git a/.github/workflows/twisted_trunk.yml b/.github/workflows/twisted_trunk.yml
index 6a047193f..bbbe52d69 100644
--- a/.github/workflows/twisted_trunk.yml
+++ b/.github/workflows/twisted_trunk.yml
@@ -18,7 +18,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@55c7845fad90d0ae8b2e83715cb900e5e861e8cb
+        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
         with:
           toolchain: stable
       - uses: Swatinem/rust-cache@v2
@@ -43,7 +43,7 @@ jobs:
       - run: sudo apt-get -qq install xmlsec1
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@55c7845fad90d0ae8b2e83715cb900e5e861e8cb
+        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
         with:
           toolchain: stable
       - uses: Swatinem/rust-cache@v2
@@ -82,7 +82,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@55c7845fad90d0ae8b2e83715cb900e5e861e8cb
+        uses: dtolnay/rust-toolchain@e645b0cf01249a964ec099494d38d2da0f0b349f
         with:
           toolchain: stable
       - uses: Swatinem/rust-cache@v2
diff --git a/changelog.d/14557.misc b/changelog.d/14557.misc
new file mode 100644
index 000000000..379cd2378
--- /dev/null
+++ b/changelog.d/14557.misc
@@ -0,0 +1 @@
+Bump dtolnay/rust-toolchain from 55c7845fad90d0ae8b2e83715cb900e5e861e8cb to e645b0cf01249a964ec099494d38d2da0f0b349f.